Campbell TB4 Product Manual

Campbell TB4 Product Manual

Tipping bucket rain gages
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TB4, TB4MM,
CS700, CS700H
Tipping Bucket Rain Gages
Revision: 8/19
Copyright © 1995 – 2019
Campbell Scientific, Inc.

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Summary of Contents for Campbell TB4

  • Page 1 TB4, TB4MM, CS700, CS700H Tipping Bucket Rain Gages Revision: 8/19 Copyright © 1995 – 2019 Campbell Scientific, Inc.
  • Page 2 Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (Product manuals are available for review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by CSI, are warranted only to the limits extended by the original manufacturer.
  • Page 3 Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA) number, contact CAMPBELL SCIENTIFIC, INC., phone (435) 227-9000. Please write the issued RMA number clearly on the outside of the shipping container. Campbell Scientific’s shipping address is: CAMPBELL SCIENTIFIC, INC.
  • Page 4 Periodically (at least yearly) check electrical ground connections. • WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
  • Page 5: Table Of Contents

    Wind Screen ..................6 6. Specifications ............6 Heated Rain Gage ................7 7. Installation ..............7 Wiring ....................7 7.1.1 TB4, TB4M, or CS700 Connections ..........7 7.1.2 CS700H Heated Rain Gage Connections ........7 Data Logger Programming ..............9 7.2.1 PulseCount Instruction ..............10 7.2.2...
  • Page 6 A. Importing Short Cut Code Into CRBasic Editor ... A-1 B. Example Programs ..........B-1 TB4 or CS700 Example Programs ........... B-1 B.1.1 CR6 Program for the TB4 or CS700 ......... B-1 B.1.2 CR1000X Programs for the TB4 or CS700 ......B-2 CS700H Example Programs ............. B-4 B.2.1 CR6 Program for the CS700H ..........
  • Page 7 Diagram showing how the “Snow Run-On” timer controls the heater.................... C-3 Tables 7-1. TB4, TB4MM, or CS700 Wire Color, Wire Function, and Data Logger Connection ................7 7-2. CS700H Sensor Cable Wire Color, Wire Function, and Data Logger Connection ................8 7-3.
  • Page 8: Introduction

    Introduction The TB4, TB4MM, CS700, and CS700H are tipping bucket rain gages that funnel rain into a mechanism that tips when filled. The TB4, CS700, and CS700H measure in 0.01-inch increments and the TB4MM measures in 0.2-mm increments. The TB4 and TB4MM have a lightweight plastic base, and the CS700 and CS700H have a heavy-duty, cast-aluminum base (FIGURE 1-1).
  • Page 9: Initial Inspection

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages degradation. However, this jacket will support combustion in air. It is rated as slow burning when tested according to U.L. 94 H.B. and will pass FMVSS302. Local fire codes may preclude its use inside buildings.
  • Page 10 The default rainfall per tip value of 0.01 inches should be used if the sensor is a TB4 or CS700 purchased at Campbell Scientific (U.S. office). Select 0.2 mm if the sensor is a TB4MM purchased at Campbell Scientific (U.S.
  • Page 11: Overview

    LoggerNet, PC400, RTDAQ, or PC200W to make sure it is making reasonable measurements. Overview The TB4, TB4MM, CS700, and CS700H tipping bucket rain gages are manufactured by HS Hyquest Solutions Pty. Ltd. and modified for use with Campbell Scientific data loggers. These rain gages funnel precipitation into a bucket mechanism that tips when filled to a calibrated level (FIGURE 5-1).
  • Page 12: Cs700 Bucket Mechanism (Housing Not Shown)

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages by the data logger. When the bucket tips, the water drains out the screened fittings in the base of the gage. The rain gages are ideal for locations where intense rainfall events may occur.
  • Page 13: Wind Screen

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages With the DC option, the CS700H is connected to a user-supplied battery. This option is ideal for remote sites using wind or solar power to recharge the battery. Battery capacity requirements vary according to the application and site location.
  • Page 14: Heated Rain Gage

    See Section 4, QuickStart , for a Short Cut tutorial. (p. 2) Wiring 7.1.1 TB4, TB4M, or CS700 Connections TABLE 7-1. TB4, TB4MM, or CS700 Wire Color, Wire Function, and Data Logger Connection Data Logger Data Logger Wire Wire...
  • Page 15: Cs700H With Cables

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Sensor Cable Power Cable FIGURE 7-1. CS700H with Cables The sensor cable connects to the data logger (TABLE 7-2). The power cable connects to the power supply (TABLE 7-3). FIGURE shows the terminals for connecting the power cable to the Phoenix Contact Power Supply.
  • Page 16: Data Logger Programming

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Power Out: Connects to CS700H Power In: Connects to 110 VAC Adapter FIGURE 7-2. Phoenix Contact Power Supply Data Logger Programming Short Cut is the best source for up-to-date data logger programming code.
  • Page 17: Pulsecount Instruction

    The Multiplier parameter determines the units in which rainfall is • reported. For the TB4, CS700, and CS700H, a multiplier of 0.01 converts the output to inches and a multiplier of 0.254 converts the output to millimeters. For the TB4MM, a multiplier of 0.2 converts the output to millimeters and a multiplier of 0.008 converts it to...
  • Page 18: Typical Rain Gage Installation

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Campbell Scientific offers the CM240 mounting bracket for installing and leveling the rain gages. The CM240 may be attached to a CM300-Series mounting pole or to a user-supplied 1.5 in. IPS (1.9 in. OD) unthreaded pipe.
  • Page 19: Mounting To The Cm240 And Leveling

    Remove the housing assembly from the base by loosening the three housing screws and lifting the housing upward (FIGURE 7-5). Funnel Housing Tipping Bucket Assembly Bullseye Level Base Foot Housing Screw FIGURE 7-5. Transparent View of the TB4 (CS700 looks similar)
  • Page 20: Cs700H Power Supply Installation

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Remove the leveling screws from the CM240 (FIGURE 7-6). Leveling Screw Leveling Screw Leveling Screw FIGURE 7-6. CM240 Mounting Bracket Place the tipping bucket on the CM240 and line up the holes in the tipping bucket feet with the holes for the CM240 leveling screws (FIGURE and FIGURE 7-6).
  • Page 21: Long Cable Lengths

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Long Cable Lengths Long cables have appreciable capacitance between the lines. A built up charge could cause arcing when the switch closes, shortening switch life. A 100 ohm resistor is connected in series at the switch to prevent arcing by limiting the current (FIGURE 8-1).
  • Page 22: Troubleshooting And Maintenance

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages 0=snow sensor disabled; 1=snow sensor enabled 0=heater elements off; 1=heater elements on 0=automatic control; 1=manual control 0=cycle disabled; 1=cycle enabled Low Power Heater cycle time left (mins) When using an M! command, the data logger waits for the time specified by the sensor, sends the D! command, pauses its operation, and waits until either it receives the data from the sensor or the sensor timeout expires.
  • Page 23: Maintenance

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages wires should vary from infinite (switch open) when the bucket is tipped, to less than an ohm when the bucket is balanced. Symptom: CS700H not communicating over SDI-12 Ensure that both the sensor and power cables are properly connected (TABLE and TABLE 7-3).
  • Page 24: Tb4 Base

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Reed Switch Assembly Tipping Bucket Assembly Bullseye Level Housing Screw FIGURE 9-2. TB4 Base 2. Separate the filter/siphon assembly from the funnel by pushing the filter while pulling the siphon (FIGURE 9-3).
  • Page 25: Reassembling The Rain Bucket

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages 3. Disassemble the filter/siphon assembly by doing the following (FIGURE 9-4): (a) Unscrew nut (b) Lightly press stem down on surface until stem pops out of siphon body. (c) Remove stem from siphon body.
  • Page 26: Calibration Check

    TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages Push filter/siphon assembly back into place (FIGURE 9-5). CAUTION Do not twist the filter/siphon assembly while putting it back into place. To re-assemble, push the filter/siphon assembly back in place. Do not twist.
  • Page 27: Importing Short Cut Code Into Crbasic Editor

    Appendix A. Importing Short Cut Code Into CRBasic Editor Short Cut creates a .DEF file that contains wiring information and a program file that can be imported into the CRBasic Editor. By default, these files reside in the C:\campbellsci\SCWin folder. Import Short Cut program file and wiring information into CRBasic Editor: Create the Short Cut program following the procedure in Section 4, .
  • Page 28: Example Programs

    B.1 TB4 or CS700 Example Programs B.1.1 CR6 Program for the TB4 or CS700 In the following CR6 program, the TB4 or CS700 is connected to U1, and the rain measurements are reported in inches. Battery voltage and panel temperature are also measured.
  • Page 29: Cr1000X Programs For The Tb4 Or Cs700

    Battery voltage and panel temperature are also measured. In the second program, the rain gage is connected to C1, and the rain measurements are reported in millimeters. CRBasic Example B-2. CR1000X Program Using a Pulse Terminal to Measure the TB4 or CS700 'Program measures one TB4 or CS700...
  • Page 30: Or Cs700

    Appendix B. Example Programs CRBasic Example B-3. CR1000X Program Using a Control Terminal to Measure the TB4 or CS700 'CR1000X 'Program measures one rain gage using control terminal 'Wiring Diagram '============== 'Wire 'Color Function Terminal '----- -------- -------- 'Black Rain signal...
  • Page 31: Cs700H Example Programs

    Appendix B. Example Programs B.2 CS700H Example Programs B.2.1 CR6 Program for the CS700H In the following CR6 program, the CS700H is connected to U1, and the rain measurements are reported in inches. This program does not retrieve real-time status information using the SDI-12 protocol. An example program that retrieves status information is provided in Appendix B.2.2, CR1000X Programs for CS700H (p.
  • Page 32: Cr1000X Programs For Cs700H

    Appendix B. Example Programs B.2.2 CR1000X Programs for CS700H This section includes two CR1000X programs that measure the CS700H heated tipping bucket rain gage. Both programs measure precipitation (mm), battery voltage, and panel temperature. The second program also retrieves real time status information by using SDI-12 protocol.
  • Page 33: B-6. Cr1000X Program Measuring The Cs700H And Monitoring Heater

    Appendix B. Example Programs CRBasic Example B-6. CR1000X Program Measuring the CS700H and Monitoring Heater 'Program measures one CS700H and monitors heater via SDI-12 'Wiring Diagram '============== 'CS700H 'Wire 'Color Function Terminal '----- -------- -------- 'Black Rain signal 'White Rain signal ground Ground Symbol 'Clear Shield...
  • Page 34 Appendix B. Example Programs 'Call Data Tables and Store Data CallTable OneMin CallTable OneDay NextScan EndProg...
  • Page 35: Cs700H Operation Details

    Appendix C. CS700H Operation Details CAUTION Factory settings have been set to adequately measure precipitation during cold precipitation events. Changing these settings is not recommended, and doing so may change the data outcome or render the sensor inoperable. TABLE shows the CS700H factory default settings for adequately measuring precipitation during cold precipitation.
  • Page 36 Appendix C. CS700H Operation Details When the CS700H is not active, the status LED flashes every 1.5 s. When the ambient temperature sensor detects the temperature falling below the Active On temperature (4 °C) then the system becomes active and the snow sensor is enabled (FIGURE C-2).
  • Page 37: High Power Operation

    Appendix C. CS700H Operation Details When snow is last detected, a timer is left running to keep the heater cycling so that any snow built up on the funnel will be melted. The Snow Run-on timer is factory preset to 18 minutes but may be extended as required. The heater will cycle on and off for the Run-on time or while ever snow is detected (see FIGURE C-3).
  • Page 38: Status Led

    Appendix C. CS700H Operation Details CAUTION If the heating elements are left turned on, the funnel temperature may reach a point where the snow evaporates before it hits the funnel! C.3 Status LED The Status LED, within the ambient temperature sensor probe, flashes to indicate the mode that the CS700H is in (see TABLE C-2).
  • Page 39: Operating Modes

    Appendix C. CS700H Operation Details TABLE C-3. Snow Sensor Power Options Mode (aX20! Snow Enabled command) aX22! command Description Snow sensor isn’t powered. Cannot detect real snow, instead it indicates snow is always present. Snow sensor only is powered only Auto when the ambient temperature is below the Active On temperature.
  • Page 40: Sdi-12 Sensor Support

    Only three wires are necessary — serial data, ground, and 12 V. With unique addresses, multiple SDI-12 sensors can connect to a single SDI-12 terminal on a Campbell Scientific data logger. This appendix discusses the structure of SDI-12 commands and the process of querying SDI-12 sensors.
  • Page 41: Campbell Scientific Sensor Sdi-12 Command And Response Set

    An active sensor responds to each command. Responses have several standard forms and always terminate with <CR><LF> (carriage return and line feed). Standard SDI-12 commands are listed in TABLE C-5. TABLE C-5. Campbell Scientific Sensor SDI-12 Command and Response Set Name...
  • Page 42: Acknowledge Active Command (A

    Appendix C. CS700H Operation Details C.6.2.1 Acknowledge Active Command (a!) The Acknowledge Active command (a!) is used to test a sensor on the SDI-12 bus. An active sensor responds with its address. C.6.2.2 Send Identification Command (aI!) Sensor identifiers are requested by issuing command aI!. The reply is defined by the sensor manufacturer but usually includes the sensor address, SDI-12 version, manufacturer’s name, and sensor model information.
  • Page 43: Start Measurement Commands (Am

    Appendix C. CS700H Operation Details A sensor address is changed with command aAb!, where a is the current address and b is the new address. For example, to change an address from 0 to 2, the command is 0A2!. The sensor responds with the new address b, which in this case is 2.
  • Page 44 Appendix C. CS700H Operation Details seconds or less. The response to each command has the form atttn<CR><LF>, where a = the sensor address ttt = time, in seconds, until the measurement data is available nn = the number of values to be returned when one or more subsequent D commands are issued.
  • Page 45: Start Measurement Commands With Cyclic Redundancy Check (Amc! And Acc

    Appendix C. CS700H Operation Details Ten seconds later, after a total of 40 seconds have passed, the data logger YD0! starts the process of data from sensor Y by issuing the first D command. The sensor immediately responds with the sensor address and the 6 Y+1+2+3+4+5+6<CR><LF>...
  • Page 46: Continuous Measurement Command (Ar0

    Transparent mode is entered while the computer is communicating with the data logger through a terminal emulator program. It is accessed through Campbell Scientific data logger support software or other terminal emulator programs. Data logger keyboards and displays cannot be used.
  • Page 47: Changing An Sdi-12 Address

    Appendix C. CS700H Operation Details C.6.3.1 Changing an SDI-12 Address The following example was done with a CR1000, but the steps are only slightly different for CR1000X-series, CR300-series, CR6-series, CR800-series, and CR3000 data loggers. Connect an SDI-12 sensor to the CR1000. In LoggerNet Connect, under Datalogger, click Terminal Emulator.
  • Page 48: Phoenix Contact Power Supply Specifications

    Appendix D. Phoenix Contact Power Supply Specifications The Phoenix Contact power supply is used for the –AC option for the CS700H only. Model Name: Quint-PS/1AC/24DC/10 Input data Nominal input voltage: 100 VAC to 240 VAC AC input voltage range: 85 VAC to 264 VAC Short-term input voltage: 300 VAC AC frequency range:...
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